[英]Extract hour from timestamp in string format on bigQuery
我有一个字符串格式的时间戳,看起来像2010-02-02T07:54:40Z
。 我怎样才能从这个时间戳中得到HOUR
数?
我尝试SELECT dt, EXTRACT(HOUR FROM dt) FROM table
但我收到此错误:
No matching signature for function EXTRACT for argument types: DATE_TIME_PART FROM STRING. Supported signatures: EXTRACT(DATE_TIME_PART FROM DATE); EXTRACT(DATE_TIME_PART FROM TIMESTAMP [AT TIME ZONE STRING]); EXTRACT(DATE_TIME_PART FROM DATETIME); EXTRACT(DATE_TIME_PART FROM TIME); EXTRACT(DATE_TIME_PART FROM INTERVAL)
如何从2010-02-02T07:54:40Z
获取HOUR
?
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.